Explain the concept and importance of biodiversity in tropical rainforests. Examine the causes and consequences of reduced biodiversity in this biome.
Part 1: Intro to Biodiversity
- The sun supplies the overwhelming majority of energy
- The energy is absorbed by plants through photosynthesis
- It is then redistributed to other species through
- The biosphere is the part of the earth where all living thing live.
- All elements are directly or indirectly interdependent.
- An ecosystem is an interdependent community of plants and animals together with the habitat to which they have adapted.
- Organisms can be either producers or consumers:
- Producers convert energy from the environment into carbon bonds
- Plants are the most obvious examples of producers; plants take energy from sunlight and use it to convert carbon dioxide into glucose (or other sugars).
- Another word for producers is autotrophs
- Energy and nutrients are passed from organism to organism through the food chain as one organism eats another.
- Decomposers remove the last energy from the remains of organisms.
- Inorganic nutrients are cycled, energy is not.
- Biodiversity is the biological diversity of all forms of life on earth: plants, animals and microorganisms. It refers to to species diversity, variations within species, interdependence of species, and habitat diversity.
Exercise: In groups, you will explain one of the following model. Create a (max) one page factsheet to share with the class
- Trophic levels
- Energy flows within an ecosystem
- Pyramid of numbers, biomass and energy
- The importance of tropical ecosystems
We will present 20 minutes before the end of class, or when you are all done.